Question

An electric train is moving with a velocity of 120 km/h . How much distance will its cover in 30 second ? write ans with unit​

Answer 1

Given:-

• Speed of train ,s = 120km/h

• Time taken ,t = 30s

To Find:-

• Distance covered by train ,d

Solution:-

According to the Question

Firstly we change the unit here . We 'll convert the speed into m/s . So , by multiplying 5/18

$:\implies$ s = 120×5/18

$:\implies$ s = 33.33 m/s

Now, Calculating the distance covered by the train

• d = st

where,

• s denote speed
• t denote time
• d denote distance

Substitute the value we get

$:\implies$ d = 33.33 × 30

$:\implies$ d = 999.9 m ≈ 1000m

• Hence, the distance covered by the train is approx 1000 metres or 1 kilometre.

Answer 2

Given :-

An  electric train is moving with a velocity of 120 km/h

To Find :-

How much distance will its cover in 30 second

Solution :-

We know that

1 km/h = 5/18 m/s

120 km/h = 120 × 5/18 = 600/18 m/s

Now

Distance = Speed × Time

Distance = 600/18 × 30

Distance = 18,000/18

Distance = 1000 m

Hence,

Distance is 1000 m

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